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Recently, numerous techniques have been reported for generating optically active defects in exfoliated hexagonal boron nitride (hBN), which hold transformative potential for quantum photonic devices. However, achieving on-demand generation…

Hexagonal boron nitride (h-BN), one of the hallmark van der Waals (vdW) layered crystals with an ensemble of attractive physical properties, is playing increasingly important roles in exploring two-dimensional (2D) electronics, photonics,…

介观与纳米尺度物理 · 物理学 2020-01-07 Yanan Wang , Jaesung Lee , Xu-Qian Zheng , Yong Xie , Philip X. -L. Feng

Development of scalable quantum photonic technologies requires on-chip integration of components such as photonic crystal cavities and waveguides with nonclassical light sources. Recently, hexagonal boron nitride (hBN) has emerged as a…

Hexagonal boron nitride (hBN) has recently gained a strong interest as a strategic component in engineering van der Waals heterostructures built with two dimensional crystals such as graphene. This work reports micro-Raman measurements on…

材料科学 · 物理学 2017-05-04 I Stenger , A Schué , A Boukhicha , B Berini , A Plaçais , A Loiseau , J Barjon

Optical heating of plasmonic nanostructures is a critical challenge in nanoscale systems. Although plasmonic effects enable enhanced optical functionalities, the associated temperature rise can degrade performance in heat-sensitive…

In this article, we have theoretically investigated the performance of graphene-hexagonal Boron Nitride hyper crystals to demonstrate all angle negative refraction.Hexagonal Boron Nitride, the latest natural hyperbolic material; can be a…

A new interlayer force-field for layered hexagonal boron nitride (h-BN) based structures is presented. The force-field contains three terms representing the interlayer attraction due to dispersive interactions, repulsion due to anisotropic…

材料科学 · 物理学 2014-03-13 Itai Leven , Ido Azuri , Leeor Kronik , Oded Hod

Growing interest in devices based on layered van der Waals (vdW) materials is motivating the development of new nanofabrication methods. Hexagonal boron nitride (hBN) is one of the most promising materials for studies of quantum photonics…

应用物理 · 物理学 2018-09-21 Johannes E. Fröch , Yongsop Hwang , Sejeong Kim , Igor Aharonovich , Milos Toth

Among a variety of layered materials used as building blocks in van der Waals heterostructures, hexagonal boron nitride (hBN) appears as an ideal platform for hosting optically-active defects owing to its large bandgap ($\sim 6$ eV). Here…

材料科学 · 物理学 2016-09-28 L. J. Martínez , T. Pelini , V. Waselowski , J. R. Maze , B. Gil , G. Cassabois , V. Jacques

We report on a two-step ultrahigh vacuum chemical vapor deposition synthesis of a vertical Ir(111)/borophene/hexagonal boron nitride heterostructure, using borazine as a single-source precursor. The process takes advantage of the finite…

Researchers are currently exploring nanoporous two-dimensional materials, such as hexagonal boron nitride (hBN), as potential desalination membranes. Here, we study the effect of grain boundaries (GBs) and interfacial electrostatic…

材料科学 · 物理学 2022-02-22 Ananth Govind Rajan , Bharat Bhushan Sharma

Hexagonal Boron Nitride (hBN) mono and multilayers are promising hosts for room temperature single photon emitters (SPEs). In this work we explore high energy (~ MeV) electron irradiation as a means to generate stable SPEs in hBN. We…

The production of high-quality hexagonal boron nitride (h-BN) is essential for the ultimate performance of two-dimensional (2D) materials-based devices, since it is the key 2D encapsulation material. Here, a decisive guideline is reported…

材料科学 · 物理学 2022-10-14 Adrian Hemmi , Ari Paavo Seitsonen , Thomas Greber , Huanyao Cun

We propose a model for planar nanoscale dielectric capacitor consisting of a single layer, insulating hexagonal boron nitride (BN) stripe placed between two metallic graphene stripes, all forming commensurately a single atomic plane.…

介观与纳米尺度物理 · 物理学 2015-06-02 V. Ongun Özçelik , S. Ciraci

The needs for efficient heat removal and superior thermal conduction in nano/micro devices have triggered tremendous studies in low-dimensional materials with high thermal conductivity. Hexagonal boron nitride (h-BN) is believed to be one…

介观与纳米尺度物理 · 物理学 2017-03-03 Xinxia Li , Yaping Yan , Lan Dong , Jie Guo , Adili Aiyiti , Xiangfan Xu , Baowen Li

Hexagonal boron nitride (hBN) holds promise as a solid state, van der Waals host of single photon emitters for on-chip quantum photonics. The B-centre defect emitting at 436 nm is particularly compelling as it can be generated by electron…

应用物理 · 物理学 2024-04-16 Sergei Nedić , Karin Yamamura , Angus Gale , Igor Aharonovich , Milos Toth

We investigate a nanoscale dielectric capacitor model consisting of two-dimensional, hexagonal h-BN layers placed between two commensurate and metallic graphene layers using self-consistent field density functional theory. The separation of…

介观与纳米尺度物理 · 物理学 2013-07-30 V. Ongun Özçelik , S. Ciraci

Hexagonal boron nitride (BN) is widely used as a substrate and gate insulator for two-dimensional (2D) electronic devices. The studies on insulating properties and electrical reliability of BN itself, however, are quite limited. Here, we…

材料科学 · 物理学 2015-10-08 Y. Hattori , K. Watanabe , T. Taniguchi , K. Nagashio

We present electronic transport measurements of single- and bilayer graphene on commercially available hexagonal boron nitride. We extract mobilities as high as 125 000 cm^2/V/s at room temperature and 275 000 cm^2/V/s at 4.2 K. The…

介观与纳米尺度物理 · 物理学 2015-05-30 P. J. Zomer , S. P. Dash , N. Tombros , B. J. van Wees

We report the first observation of substitutional silicon atoms in single-layer hexagonal boron nitride (h-BN) using aberration corrected scanning transmission electron microscopy (STEM). The medium angle annular dark field (MAADF) images…